go/internal/packagesdriver: report stderr when failed to determine types.Sizes
go/internal/packagesdriver: report stderr when failed to determine types.Sizes

Provide more information to help users when the go list command intended to determine
the GOARCH and Go compiler fails. This usually happens because there's an issue in
the main module.

Fixes golang/go#30355

Change-Id: I0ce1cfc55cb0ee793bdd1e6fd261a4f98a44abd8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/204357
Run-TryBot: Michael Matloob <4562438b12c14e81a47550acde616ff328a909f8@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@golang.org>

golang/tools,golang/tools,golang/tools,golang/tools,golang/tools